These are a steal. He had them boxed up already so couldn't easily tell whether they were green or red boards. He thought they were probably the older green ones.
The customer bought the first amp from them in 2000, the second in 2003 or 2004 as a mono and had the older one updated from stereo to mono. Serial numbers 700 and 01-710.
I saw a post somewhere that the intro of red boards coincided with the Khartago whenever that was.
If you wanna know for sure call Klaus... but then you'll end up ordering a lot of new stuff and be very happy
